Effect of distortion on the buckling strength of stiffened panels

Pretheesh Paul Chaithanya, Purnendu K. Das, Anthony Crow, Stuart Hunt

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper predicts the behaviour of stiffened plates with different distortion levels in order to address a rational structural design procedure as pre-existing and fabricationrelated (like weld-induced) initial geometrical distortion is of great importance in structural design point of view. The considered range of scantlings, the distortion typesand levels were chosen, based on panels used at BVT Surface Fleet Ltd., where the type 45 destroyer were under construction. An analytical relation is presented based on Perry's column approach to establish the variation of buckling strength against the geometrical distortion. A parametric form of non linear finite element analysis using ABAQUS has been carried out under axial loading condition to predict the behaviour and the buckling strength. The effect of residual stress is not considered in this study. A new strength parameter is proposed to represent buckling strength which takes into account the inelastic post-buckling behaviour of the structure. The results from FE analysis are plotted in non-dimensional terms and arrived at some important conclusions.
LanguageEnglish
Pages141-153
Number of pages13
JournalShips and Offshore Structures
Volume5
Issue number2
DOIs
Publication statusPublished - Apr 2009

Fingerprint

Buckling
Structural design
ABAQUS
Residual stresses
Welds
Finite element method

Keywords

  • stiffened panels
  • initial distortion
  • buckling strength
  • abaqus

Cite this

Chaithanya, Pretheesh Paul ; Das, Purnendu K. ; Crow, Anthony ; Hunt, Stuart. / Effect of distortion on the buckling strength of stiffened panels. In: Ships and Offshore Structures. 2009 ; Vol. 5, No. 2. pp. 141-153.
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Effect of distortion on the buckling strength of stiffened panels. / Chaithanya, Pretheesh Paul; Das, Purnendu K.; Crow, Anthony; Hunt, Stuart.

In: Ships and Offshore Structures, Vol. 5, No. 2, 04.2009, p. 141-153.

Research output: Contribution to journalArticle

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